Abstract

Transition-Metal (Mn, Co, Fe, and Cr) substituted silicon polyoxotungstates (SiW11O39Mn−) can be used successfully as electrocatalyst for alcohol oxidation. The behavior of a manganese substituted silicon polyoxotungstate (K6SiW11O39Mn(II)(H2O)) under electrochemical oxidation conditions was investigated by means of cyclic voltammetry and the formation of the active complex SiW11O39Mn(OH) was confirmed.